Bug #75621 [Com]: Opcache crashes Apache possible with bad chars

Edit report at https://bugs.php.net/bug.php?id=75621&edit=1 ID: 75621 Comment by: post at minhost dot no Reported by: pascal dot nobus at webservice dot be Summary: Opcache crashes Apache possible with bad chars Status: Open Type: Bug Package: opcache Operating System: Slackware 14.1 PHP Version: 7.1.12 Block user comment: N Private report: N New Comment: Are you sure it is Apache that crashes and not only PHP pages? If it is only PHP pages that crashes, then it could be related to Bug #75579 Previous Comments: ------------------------------------------------------------------------ [2017-12-04 10:55:51] pascal dot nobus at webservice dot be Description: ------------ On POSTs from IP's mostly located in Russia/Ukrain, we see apache is crashing: [Mon Dec 04 10:30:40.665477 2017] [core:notice] [pid 9797:tid 140551095412608] AH00051: child pid 16751 exit signal Segmentation fault (11) Back tracing the core-dumps is always one of these: #0 0x0000000000000000 in ?? () #1 0x00007fd4936272d3 in execute_ex (ex=<optimized out>) at /usr/local/src/php-7.1.12/Zend/zend_vm_execute.h:429 #0 execute_ex (ex=<optimized out>) at /usr/local/src/php-7.1.12/Zend/zend_vm_execute.h:429 #1 0x00007fd49368367b in zend_execute (op_array=<optimized out>, return_value=<optimized out>) at /usr/local/src/php-7.1.12/Zend/zend_vm_execute.h:474 Apache-version httpd-2.4.29 (MPM-event) php compiled as module. There is only one php-extension on the server: opcache. Uncommented opcache-settings in php.ini: opcache.memory_consumption=128 opcache.validate_timestamps=1 opcache.memory_consumption=128 opcache.fast_shutdown=0 I changed output_buffering to 8192 (no effect) I changed opcache.log_verbosity_level to 4, but no strange things in the logs. I have also seen: [Sun Dec 03 15:21:44.025975 2017] [core:notice] [pid 29980:tid 140454601000832] AH00052: child pid 4005 exit signal Segmentation fault (11) And even a couple of times this one (less then the segmenation faults): zend_mm_heap corrupted Any ideas Test script: --------------- up-to-date pages of wordpress (index.php wp-login.php), on different sites. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75621&edit=1